8464542001605 has 64 divisors (see below), whose sum is σ = 15163542731520. Its totient is φ = 4479856512768.

The previous prime is 8464542001577. The next prime is 8464542001621. The reversal of 8464542001605 is 5061002454648.

It is a happy number.

8464542001605 is a `hidden beast` number, since 8 + 4 + 64 + 5 + 420 + 0 + 160 + 5 = 666.

It is not a de Polignac number, because 8464542001605 - 2⁹ = 8464542001093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16125414 + ... + 16642056.

It is an arithmetic number, because the mean of its divisors is an integer number (236930355180).

Almost surely, 2^{8464542001605} is an apocalyptic number.

It is an amenable number.

8464542001605 is a deficient number, since it is larger than the sum of its proper divisors (6699000729915).

8464542001605 is a wasteful number, since it uses less digits than its factorization.

8464542001605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517587 (or 517581 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 8464542001605 in words is "eight trillion, four hundred sixty-four billion, five hundred forty-two million, one thousand, six hundred five".